Record card controlled electro-graphic printer



March 1960 1. M. HlX 2,927,516

RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 1 INVENTOR. IRA M. HIX

A'ILTORNE'TY I. M. HIX

March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER l9 Sheets-Sheet 2 Filed Dec. 29, 1955 I. M. HIX

March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 3 FIG; 3

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RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 4- INFORMATION To BE PRIMARY RECORD CARD MASKED AND\TRANSFERRED JOHN JONES 529 w. MAIN ST ACCT 91323 PX ENDICOTT N.Y.

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March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER 19 Sheets-Sheet 5 Filed Dec. 29,

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RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 6 I. M. HIX

March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 7 I. M. HlX

March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRI NTER Filed Dec. 29, 1955 19 Sheets-Sheet 8 SECONDARY March8, 1960 M. Hlx 2,927,516

RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. .29, 1955 19 Sheets-Sheet 9 March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed D60. 29, 1955 19 Sheets-Sheet 10 TMH OHMP March 8, 1960 I. M. HIX

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RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 1a BRUSH STIPPLE MASK CLUTCH IN FLIGHT 4 PUSHER 2 m FLIGHT ALIGNER TRANSFER ROLLER I. HIX

March 8, 1960 RECORD CARD CONTROLLED ELECTROGRAPHIC PRINTER Filed Dec. 29, 1955 19 Sheets-Sheet 19 6 =9 3 8 To Na Um w h t. n Q. mo 5 no no \I 9 QR S. 2 8 ww m m m v No m T w J an R u zmmwmwmw won m? V\ 3 Q on wo 3 States Patent "ice RECORD CARDC'ONTROLLED ELECTRO- GRAPHIC PRINTER Ira M. Hix, Vestal, N.Y'., assignor to International Business Machines Corporation, New York, N.Y., a corporation of New York Application December 29, 1955, Serial No. 556,216

8 Claims. (Cl. 95'-1.7)

This invention relates in general to a record card controlled electrographic printer, and in particular to improved apparatus thereof for providing a selective printing record card controlled card-to-card electrographic printer,

The preferred embodiment of the present invention which is also disclosed in copending US. patent application, Serial No. 556,176, filed on December 29, 1955.

by M. J. Kelly, makes use of a typeof electrographic printing commonly referred to as xerographic printing, i.e., so-called dry printing. Accordingly, the preferred embodiment of the present invention pertains to a xerographic printing machine capable of producing a facformation receiving secondary car'ds which too may have machine control data recorded thereon, are fed, one-byone, past a control data sensing station, a xerographic toner image transfer station, and a toner image fixing station. The optical image of the source information carried by. each primary card and produced by apparatus in the afore-mentioned scanning station, is initially stored in a conventional manner as a latent electrostatic image on the surface of a constantly rotating xerographic drum." Thus, a latent electrostatic image of the source information on each of the primary cards advanced successively past the optical scanning station, will appearin a series formation of such images about the peripheral surface of the xerographic drum. Prior to moving these latent electrostatic images through a xerographic image developing station, the said images are advanced through aso-called masking-erasing station whereat certain ones of the images can be erased from the xerographic drum surface while other ones of the images may have only select portions thereof erased; Thus, after each of the remaining images is developed xerographically, the same is moved into the aforesaid toner image transfer station for transfer onto a clean surface of a related secondary card.

As will be brought out in detail hereinafter, the operationof the apparatus in the afore-mentioned maskingerasing station can be governed in accordance with the control data recorded on primary cards as well as on primary and secondary cards. In addition thereto, the operation of the latent electrostatic image developing apparatus can be governed by the aforesaid control data, so that xerographic toner is transferred onto only those surface areas of the xerographic drum whereat a latent electrostatic image is stored. Hence, these preceding features cooperate to provide a record card controlled.

card-to-card xerographic printer that can be governed 2,927,516 Patented Mar. 8, I

to effect a transfer of primary card source information onto only certain secondary cards which are related to the primary cards by the control data recorded thereon. Hence, for example, those latent electrostatic images associated with primary cards which lack corresponding secondary cards, will be erased and not developed, andcourse cannot be transferred, i.e., printed, onto secondary cards. On the other hand, those second cards which lack corresponding primary cards will be advanced" through the afore-mentioned transfer station while the apparatus thereof is disabled, so that a transfer or print operation is not effected. It might be Well to bring out here that the transfer'station apparatus is similar to the shiftable transfer roller apparatus shown and described in copending US. patent application, Serial No. 419,314,

.. filed on March 2 9, 1954, by c. J. Fitch, now US. Patent A broad object of this invention is to provide a record card controlled xerographic printer which affords selectively controllable printing operations. v

Another object of this invention is to provide a record card controlled xerographic printer which is more efficient than any similar printing device known heretofore;

Anotherobject of this invention is to provide apparatus for erasing select latent electrostatic images.

Still another object ofthis invention is to provide apparatus for erasing predetermined portions of latent electrostatic images. i

In line with the foregoing, a more specific object of this invention is to provide record card controlled appara-' 1 tus for erasing select ones of a plurality of latent electrostatic images and predetermined portions of the remain-' ing ones of said images.

Another object of this invention is to provide a selectively operable xerographic image developing apparatus.

Another object of this invention is to provide a record card controlled Xerographic image developing apparatus which is selectively operable to develop only those ones of a plurality of latent electrostatic images that are to be transferred onto corresponding image receiving record cards.

In much the same manner as is accomplished in the xerographic printer shown and described in the afore-- mentioned copending Kelly patent application, the subject xerographic printer can be governed in accordance with the primary and secondary card control data, so

indicative of the versatility and flexibility of the preferred embodiment of the present invention, and in no way should they be construed as limitations thereof. Other machine features and functions will become clear as the description advances.

Another object of this invention is to provide an imroved xerographic printer that can perform a variety of different functions which per se are ancillary to theprinting operation.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of ex-' amples, the principle of the invention and the best mode, which has been contemplated, ofv applying that principle.

In the drawings: Fig. 1 is a somewhat diagrammatic view of a record card controlled xerographie card-to-card printer.

-Fig. 2 is a somewhat diagrammatic view of the drive mechanism for the aforesaid card-to-card printer.

Fig. 2a is a diagrammatic view of the secondary card feed clutch mechanism.

' Fig. 3 is a somewhat diagrammatic view of'the optical 

